I have tried several times to reproduce this and I am not able to. Do which
server are you shooting and restarting? Are you killing the supervisor and all
of the worker processes at the same time? Are you shooting one worker process?
What exactly are you doing? I have tried both of these several times using
the latest from branch-0.9.x and I have not been able to see it happen.
- Bobby
On Thursday, August 6, 2015 11:33 PM, Thilina Rathnayake
<[email protected]> wrote:
Hi Bobby,
Thank you very much for the reply.
I have created a git repository with my code in [1].
`RepeatWordsSpout` in [2] is just keeps repeating the same set of words in
different batches.
In `RWEmitter`[3], I use a hash map to keep track of the batches emitted
and remove a batch
from the map after the batch successfully gets processed.
Other code is just boiler plate.
[1] https://github.com/thilinarmtb/trident-demo
[2]
https://github.com/thilinarmtb/trident-demo/blob/master/src/main/java/trident/demo/spouts/RepeatWordsSpout.java
[3]
https://github.com/thilinarmtb/trident-demo/blob/master/src/main/java/trident/demo/spouts/RWEmitter.java
Regards,
Thilina
On Thu, Aug 6, 2015 at 4:48 PM, Thilina Rathnayake <[email protected]>
wrote:
> Hi All,
>
> I posted this question in user's mailing list as well. I am posting here
> because I
> am not sure whether this is a bug in trident or not.
>
> I am playing with a trident topology having a single spout. The topology
> simply
> counts the words emitted and stores it in redis [1]. I run this topology
> on 4 worker
> nodes.
>
> I deliberately shutdown one worker node and restart it and monitor the
> batch
> replay (I am logging the transaction id of the batches being emitted).
>
> I see the last batch which didn't complete before the shutdown gets
> re-emitted
> again and again without succeeding. Any idea why this happens?
> (I created the spout implementing `ITridentSpout`.)
>
> If I don't crash the server, the topology runs normally and finishes.
>
> Thanks in advance for any explanation about this.
>
> [1] http://redis.io/
>
> Regards,
> Thilina
>
